mainline inclusion
from mainline-v5.13-rc1~76^2
commit 297b8603
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5ITJT
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=297b8603e356ad82c1345cc75fad4d89310a3c34

-------------------------------------------------

as we are about to change the way KVM deals with SVE, provide
KVM with its own save/restore SVE primitives.

No functional change intended.
Acked-by: NWill Deacon <will@kernel.org>
Signed-off-by: NMarc Zyngier <maz@kernel.org>
Signed-off-by: NWang ShaoBo <bobo.shaobowang@huawei.com>